Air-line oiler



Jan. 17, 1928. 1,656,708 I c. c. HANSEN AIR LINE OIL'ER Filed Jan. 11, 1927 INVEN TOR. (12am 5 iffiiazzden.

HIS A TTO NEY.

" reciprocatory action ofithe pin V in the pas sage T. Since the outer end of the pin V is at all tunes innnersed inoil, some o'l' the oil will be advanced through the passage T into thetube P to inter-mingle with the pressure fluid flowing through thetube and becarried thereby to the drill or other engine to which the pressure fluid is being supplied.

Owing to the fact that the tube P may both rotate freely with respect to the casing and also slide freely longitudinally of the casing, the outer end of the pipe R will at all tinies remain above the oil level, thus insuring against an uncontrolled flow of oil into the air line, and the inlet uissage U will also he in constant communication with the supply of oil in the reservoir.

Inasmuch that the tube P is slidable in the passage-Ways L said tube niay, under the action of the Weight S, slide to one or the other of theextreine positions which it may assuine in the casing, thus enabling practically the entiresupply of lubricant to be exliausted from the reservoir. In other Words, the prescnt invention enables thereseryoir to he practi ally emptied after each filling and therefore does not require that the reservoir be of unusually large (llll'lQTlSlOIlS in order to prevent frequent interruptions in the drillng for the purpose of replenishing the supp of oil intlie reservoir.

The length of the reciprocations oi thepin V may be raried by means ofthe screw IV to suit various grades of oil. For instance, it itibe desired to use a heavy grade of oil, the screw W may be adjusted to allow inaxiinuin reciprocation of the pin V On the other hand,ifconditions require a light grade of oil, the screw IV may be screwed in the direction of the pin V thus shortening the strokes of the pin and consequently reducing the amount of oil introduced into the tube P at each movement of the pin.

I claim:

1. An air line oiler comprising' a casing forming an oil reservoir, said casing having passage-ways for pressure fluid in opposite ends, a tube slid-able in the passageways bridging the passageways a weight on the side of the tube for sliding the tube longitudinally ot' the passage-Ways touuirds the low erniost portion of the reservoir, said weight having a puissage 'l'or convegxing oil from the reservoir into the tube, and a pin in the possage adapted to he reciprocated by the pulsations occurring in the pr: 'ure fluid flowing through the tube for delivering oil "from the reservoir into the tube.

2. An air line oiler crinuprising a casing forming an oil rcserwiir, said casingtliavirur passage-Ways for pressure fluid in opposite ends a tube rotatable and longitudinally slidublc in the passage-Ways bridging said passage-Ways, a pipe carriedhy the tube to convc pressure fluid from the tube into the reservoir, a weight on the side of the tube slidably and irotatal'ily actuating the tube toward the lowermost portion of the reservoir, said Weight having a longitudinal passage near its outer edge and a transverse passage leading from the longitudinal lllflFSflgU for conveying oil from the reservoir into the tuhe,1a pin in the transuerse passage actuated hyithe pulsations occurring in the pres sure fluid flowing through the tube for dcliw ering oil into the tube, said pin boin eated with one endin the longitudiualpa and extending with its other end into tl e tube, aserew in the tube for limiting reciprocation of the pin, and shoulders on the tube cooperating with the casing ai'or limiting slidable inovclnent of the tube in the pas sagcwvays. i I

In testimony whereof I have signed this specification.

oi-iannns c. HANSEN 

